<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="vue.min.js"></script>
    <link rel="stylesheet" href="./css/style.css" />
  </head>

  <body>
    <div id="app">
      <div class="search-wrapper">
        <input type="text" v-model="search" placeholder="请搜索" />
      </div>
      <div class="wrapper">
        <div class="card" v-for="post in filteredList">
          <a v-bind:href="post.link" target="_blank">
            <img v-bind:src="post.img" />
            {{ post.title }}
          </a>
        </div>
      </div>
    </div>
    <script>
      class Post {
        constructor(title, link, img) {
          this.title = title;
          this.link = link;
          this.img = img;
        }
      }

      const app = new Vue({
        el: "#app",
        data: {
          search: "",
          postList: [
            new Post(
              "小猫咪",
              "https://unsplash.com/s/photos/cat",
              "./images/cat.png"
            ),
            new Post(
              "小狗狗",
              "https://unsplash.com/@joeyc",
              "./images/dog.png"
            ),
            new Post(
              "北极熊",
              "https://unsplash.com/@hansjurgen007",
              "./images/bar.png"
            ),
            new Post(
              "狮子",
              "https://unsplash.com/@hansjurgen007",
              "./images/lion.png"
            ),
            new Post(
              "小鸟",
              "https://unsplash.com/@eugenechystiakov",
              "./images/birds.png"
            ),
            new Post(
              "狐狸",
              "https://unsplash.com/@introspectivedsgn",
              "./images/fox.png"
            ),
          ],
        },
        computed: {
          filteredList() {
            if(this.search==""){
              return this.postList
          }
          else{
            newPostList = []
            this.postList.forEach(item=>{
            if(item.title.indexOf(this.search) != -1){
              newPostList.push(item)
            }
            })
            return newPostList
          }       
        return this.postList.filter(item => item.title.search(this.search) !== -1)
          },
        },
      });
    </script>
  </body>
</html>
